12. Stock-based Compensation (Details - Option Activity) - Options [Member] $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) $ / shares shares
Options outstanding, beginning balance	0
Options granted	50,000
Options exercised	(5,000)
Options forfeited	0
Options outstanding, ending balance	45,000
Options exercisable	3,000
Weighted average exercise price, options granted | $ / shares	$ 10.37
Weighted average exercise price, options exercised | $ / shares	9.57
Weighted average exercise price, options forfeited | $ / shares
Weighted average exercise price, options outstanding, ending balance | $ / shares	10.45
Weighted average exercise price, options exercisable | $ / shares	$ 9.57
Weighted average remaining contractural life, outstanding	9 years 6 months 26 days
Weighted average remaining contractural life, exercisable	9 years 6 months 26 days
Aggregate intrinsic value, options outstanding | $	$ 48
Aggregate intrinsic value, options exercisable | $	$ 6